Type-032 submarine 3D model

The Type 032 submarine (NATO code name Qing class) is a class of diesel-electric submarine currently undergoing testing in China's People's Liberation Army Navy. It is said to be the world's largest conventional submarine, at a submerged displacement of 6628 tons and is able to submerge for a maximum of 30 days. Type 032 has a similar ventral bay to the Golf class submarine that protrudes downward.

The submarine is a testbed for new technologies such as combustion powered torpedoes, compartments for special forces, unmanned underwater vehicles, new SLBMs, new cruise missiles, new anti-ship missiles, new SAMs, and a new escape pod which are applied to the Type 095 and Type 096 submarines.

source: https://en.wikipedia.org/wiki/Qing-class_submarine